2019独角兽企业重金招聘Python工程师标准>>> 
def authBatch = authLog.getAuthBatch()
String text = ConfReader.get("QRCODE_VALIDATE_PATH_PRE") + authBatch
// 二维码的图片格式
HashMap hints = new HashMap<>();
// 内容所使用编码
hints.put(EncodeHintType.CHARACTER_SET, Constants.UTF8);
BitMatrix bitMatrix = new MultiFormatWriter().encode(text, BarcodeFormat.QR_CODE, 400, 400, hints);
BufferedImage srcImage = MatrixToImageWriter.toBufferedImage(bitMatrix, new MatrixToImageConfig())
ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(srcImage, "jpg", out);
byte[] data = out.toByteArray();
return [
"srcData": "data:image/jpg;base64," + Base64.encodeBase64String(data)
];